Mazda B-Series 1998-06

Brake Disc (Rotor)

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Inspection





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Fig. Disc brake service limits-Navajo and B Series Pick-up rotor shown

  1. Inspect the rotor for cracks, grooves or waviness. Rotors that aren't too badly scored or grooved can be resurfaced by most automotive shops.
  2.  
  3. Measure the rotor thickness using a caliper gauge.
  4.  
  5. Minimum rotor thickness should be the following:

    Navajo and 1994-97 B Series Pick-up: 0.81 in. (20.5mm)
     
    1998 B Series Pick-up: 1.02 inch (26.0mm)
     
    MPV: 1.02 inch (26.0mm)-front / 0.63 inch (16.0mm)-rear
     

  6.  
  7. If refinishing exceeds that, the rotor will have to be replaced.
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Removal & Installation



  1. Before servicing the vehicle, refer to the Precautions Section.
  2.  
  3. Raise and support the vehicle safely.
  4.  
  5. Remove the wheel and tire assembly.
  6.  
  7. Remove the brake caliper anchor plate.
  8.  
  9. Remove the brake disc retaining clips (if equipped) and the brake disc.
  10.  
  11. To install, reverse the removal procedure. Torque the anchor plate bolts to 111 ft. lbs. (150Nm).
  12.  

4-Wheel Drive
  1. Loosen the wheel lug nuts.
  2.  
  3. Jack up the front of the vehicle and support on jackstands.
  4.  
  5. Remove the wheel and tire.
  6.  
  7. Remove the two anchor plate-to-steering knuckle bolts then slide the assembly off of the rotor.
  8.  
  9. Grasp the rotor and pull it from the wheel hub. Some models may have a small retaining screw holding the rotor to the wheel hub, if so, remove the screw then pull the rotor off.
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  11. Installation is the reverse of the removal procedure.
  12.  

Except 1995-98 4-Wheel Drive Models
  1. Loosen the wheel lug nuts.
  2.  
  3. Jack up the front of the vehicle and support on jackstands.
  4.  
  5. Remove the wheel and tire.
  6.  
  7. On 1994 models, remove the brake caliper assembly as described earlier in this Section, but do not disconnect the brake hose.
  8.  
  9. On 1995-98 models, remove the two anchor plate-to-steering knuckle bolts then slide the assembly off of the rotor.
  10.  
  11. Suspend the caliper assembly by a piece of wire. Do not allow it to hang by the brake hose.
  12.  
  13. Follow the procedure given under wheel bearing removal in Section 7 for models with manual and automatic locking hubs.
  14.  

New rotor assemblies come protected with an anti-rust coating which should be removed with denatured alcohol or degreaser. New hubs must be packed with EP wheel bearing grease.

  1. Installation is the reverse of the removal procedure.
  2.  

 
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